ok, I've been reading and reading, and I don't know the difference between a "fresh" and a "built" engine, or what either of them really mean.
it seems that a fresh engine is one that has had things put back to stock levels with new gear(pistons/rings/bearings and maybe other things)?
and a "built engine" is one that has had things changed a bit to take a bit more punishment?
Do these sound correct? and if not, can someone tell me what they really mean?